CN107178105A - A kind of Digitizing And Control Unit of loader hydraulic system - Google Patents
A kind of Digitizing And Control Unit of loader hydraulic system Download PDFInfo
- Publication number
- CN107178105A CN107178105A CN201710537624.0A CN201710537624A CN107178105A CN 107178105 A CN107178105 A CN 107178105A CN 201710537624 A CN201710537624 A CN 201710537624A CN 107178105 A CN107178105 A CN 107178105A
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- Prior art keywords
- scraper bowl
- swing arm
- valve
- control unit
- hydraulic
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
- E02F3/434—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like providing automatic sequences of movements, e.g. automatic dumping or loading, automatic return-to-dig
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of Digitizing And Control Unit of loader hydraulic system, including：Computer control unit, the electro-hydraulic valve one and electro-hydraulic valve two being electrically connected with computer control unit and the swing arm digital oil cylinder and scraper bowl digital oil cylinder that are connected with electro-hydraulic valve one；Wherein, electro-hydraulic valve one includes swing arm and joins servomotor, swing arm connection transmission mechanism, swing arm connection valve element, valve body one and middle position feedback switch；Electro-hydraulic valve one also includes scraper bowl and joins servomotor, scraper bowl connection transmission mechanism, scraper bowl connection valve element, valve body one and middle position feedback switch；Electro-hydraulic valve two includes variable speed servomotor, variable transmission mechanism, speed change valve element, valve body two and neutral feedback switch.The present invention can not only be more accurately controlled loading machine operation realization, and loading machine operation can be avoided to be influenceed by human factor, realize the automation requirement for loading machine operation.
Description
Technical field
The present invention relates to Hydraulic system and control technical field, more particularly to a kind of loader hydraulic system
Digitizing And Control Unit.
Background technology
Loading machine is one kind of engineering machinery class product, and it serves many purposes in infrastructure, collection production dress, carry,
Excavate, bulldoze, it is smooth, play important in fields such as engineering construction, mining and harbour handling of whole country
Effect.
Current hydraulic system of loading machine working device, loading machine movable arm cylinder and scraper bowl oil are controlled by two hydraulicdirectional control valves
Cylinder stretch, come realize swing arm rise or fall and scraper bowl upper turn or lower turn；Loading machine compensator pressure system passes through speed change
The clutch that valve control hydraulic oil enters each gear of speed changer is manipulated, to realize the switching of loading machine walking gear.And load
The hydraulicdirectional control valve of machine machining device hydraulic system and the speed change operating valve of compensator pressure system, are by machinery or hydraulic pressure side
Formula controls hydraulic valve valve core movement, not only complicated, and can not realize automated job.
Therefore, machine operation is loaded at present, and to driver to bring working strength big；Qualification requires high；During spading operation
Between it is long；The problems such as big operation in blind area is difficult.There will be accurate judgement during scraper bowl is laid flat ground, spading, discharging etc., be
Determined completely by human factor, the height of driver's technical merit directly affects the effect of operation.
Therefore, how to provide a kind of Digitizing And Control Unit of loader hydraulic system becomes those skilled in the art urgently
The problem of need to solving.
The content of the invention
In view of this, can be to loading machine the invention provides a kind of Digitizing And Control Unit of loader hydraulic system
Operation is realized and more accurately controlled, and loading machine operation can be avoided to be influenceed by human factor, realize and load machine operation
Automation is required.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of Digitizing And Control Unit of loader hydraulic system, including：Computer control unit, with the computer control
The electro-hydraulic valve one and electro-hydraulic valve two of unit electric connection processed and the swing arm number being connected with the electro-hydraulic valve one
Word oil cylinder and scraper bowl digital oil cylinder；Wherein, the electro-hydraulic valve one includes swing arm and joins servomotor, joins servo with the swing arm
The swing arm that motor is sequentially connected joins transmission mechanism, swing arm connection valve element, the valve body one being sleeved on the swing arm connection valve element and peace
Middle position feedback switch on the valve body one；The electro-hydraulic valve one also includes scraper bowl and joins servomotor, with the shovel
Scraper bowl connection transmission mechanism, the scraper bowl that bucket connection servomotor is sequentially connected join valve element, are sleeved on described on the scraper bowl connection valve element
Valve body one and the middle position feedback switch on the valve body one；The electro-hydraulic valve two includes speed change servo electricity
Machine, the variable transmission mechanism being connected successively with the variable speed servomotor, speed change valve element are sleeved on the valve on the speed change valve element
Body two and the neutral feedback switch on the valve body two.
Further, the computer control unit include computer chip, digital output module, servo-driver and
Alternating interface between man and computer.
Further, the computer control unit is connected with pressure sensor, and the pressure sensor with it is described
Electro-hydraulic valve one is connected.
Further, the computer control unit is connected with speed probe, and the speed probe is with loading
The output of machine speed changer is connected.
Further, loading machine includes body, bucket cylinder, boom cylinder, scraper bowl and swing arm.
Further, the swing arm connection valve element is provided with 4 movement positions：Upper raise-position, middle position, lower decrease and floating bit,
Decrease and floating bit is wherein descended to overlap on a position.
Raise-position, lower decrease on described swing arm connection, the computer control unit are pre- to swing arm connection servomotor
The running parameters such as positioning is put, angular speed, system pressure, the middle position is the idle position of the electro-hydraulic valve one, is also
The position of off-load, initial position.
Further, the scraper bowl connection valve element is provided with 3 movement positions：Upper indexing, middle position, lower indexing.
Indexable, the lower indexing on scraper bowl connection, the computer control unit makes a reservation for scraper bowl connection servomotor
The running parameters such as position, angular speed, system pressure, the middle position is the idle position of the electro-hydraulic valve one, is also to unload
The position of lotus, initial position.
Further, the speed change valve element is provided with 4 movement positions：Advance I gear, II gear that advances, neutral and reverse gear.
Keep off in the advance I of the electro-hydraulic valve two, advance and II gear and reverse gear, the computer control unit is watched to speed change
The running parameters such as motor precalculated position, angular speed are taken, neutral is the idle position of the electro-hydraulic valve two, be also off-load position
Put, initial position.II gear advance on the basis of I gear that advances, by detecting the automatic upshift of speed changer output speed or downshift.
Understand that compared with prior art, the present disclosure provides a kind of loader hydraulic via above-mentioned technical scheme
The Digitizing And Control Unit of system, beneficial effect is：
Computer control unit subscribes running parameter and direction to electro-hydraulic valve one and electro-hydraulic valve two so that right
Load machine operation and realize and more accurately controls, it is to avoid loading machine operation is influenceed by human factor；By by predetermined control
Instruction input computer control unit, computer control unit again by predetermined control instruction output to machining device hydraulic system and
Compensator pressure system, realize loading machine automation spading, scraper bowl be laid flat, the operation function such as discharging, reached loading machine operation
Automation requirement；When computer control unit is exported without control instruction, swing arm connection valve element and scraper bowl connection valve element are returned to just
Beginning position, by the testing calibration of middle position feedback switch, it is ensured that the stability in loading machine operation process；Controlled in computer single
When member is without instruction output, speed change valve element returns to initial position, by the testing calibration of neutral feedback switch, it is to avoid working time mistake
It is long, cause the problem of error is too big.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 accompanying drawings are structural representation of the invention.
Fig. 2 accompanying drawings are the structural representation of electro-hydraulic valve one of the present invention.
Fig. 3 accompanying drawings are the structural representation of electro-hydraulic valve two of the present invention.
Fig. 4 accompanying drawings are the structural representation of loading machine operating mechanism.
Wherein, in figure,
1- computer control units；2- electro-hydraulic valves one；3- electro-hydraulic valves two；4- swing arm digital oil cylinders；5- scraper bowls
Digital oil cylinder；6- swing arms join servomotor；7- swing arms join transmission mechanism；8- swing arms join valve element；9- valve bodies one；10- middle positions are fed back
Switch；11- scraper bowls join servomotor；12- scraper bowls join transmission mechanism；13- scraper bowls join valve element；14- variable speed servomotors；15- becomes
Fast transmission mechanism；16- speed change valve elements；17- valve bodies two；18- neutral gear feedback switch；19- scraper bowls；20- swing arms；21- calculates movement
Piece；22- servo-drivers.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment one：
The embodiment of the invention discloses a kind of Digitizing And Control Unit of loader hydraulic system, not only to loading machine operation
Realization is more accurately controlled, it is to avoid load machine operation is influenceed by human factor, and realizes loading machine automation shovel
The operation functions such as pick, scraper bowl are laid flat, discharging, have reached the automation requirement for loading machine operation, and in computer control unit
When being exported without control instruction, middle position feedback switch can join valve element to swing arm and scraper bowl joins valve element testing calibration, neutral feedback switch
Can be to speed change valve element testing calibration, it is ensured that the stability in loading machine operation process.
Refering to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, a kind of numeral of hydraulic system of loading machine working device and compensator pressure system
Networked control systems, including：Computer control unit 1, the electro-hydraulic valve 1 and electricity being electrically connected with computer control unit 1
Hydraulic valve 23 and the swing arm digital oil cylinder 4 and scraper bowl digital oil cylinder 5 being connected with electro-hydraulic valve 1, swing arm digital oil cylinder
4 and scraper bowl digital oil cylinder 5 be connected with computer control unit 1.
Wherein, electro-hydraulic valve 1 includes swing arm and joins servomotor 6, joins the swing arm that servomotor 6 is sequentially connected with swing arm
Join transmission mechanism 7, swing arm connection valve element 8, the valve body 1 being sleeved on swing arm connection valve element 8 and the middle position on valve body 1
Feedback switch 10；Electro-hydraulic valve 1 also includes scraper bowl and joins servomotor 11, joins the shovel that servomotor 11 is sequentially connected with scraper bowl
Bucket connection transmission mechanism 12, scraper bowl connection valve element 13, be sleeved on scraper bowl connection valve element 13 on valve body 1 and on valve body 1
Middle position feedback switch 10, middle position feedback switch 10 is connected with computer control unit 1.
Electro-hydraulic valve 23 includes variable speed servomotor 14, the gear machine being connected successively with variable speed servomotor 14
Structure 15, speed change valve element 16, the valve body 2 17 being sleeved on speed change valve element 16 and the neutral feedback on valve body 2 17 are opened
Close 18.
Refering to accompanying drawing 4, Fig. 4 accompanying drawings are the structural representation of loading machine operating mechanism.
Loading machine operating mechanism includes scraper bowl 19, swing arm 20, scraper bowl digital oil cylinder 5 and swing arm digital oil cylinder 4, wherein scraper bowl
Digital oil cylinder 5 is connected to control the rotation of scraper bowl 19 with scraper bowl 19, and swing arm digital oil cylinder 4 is connected to control swing arm 20 with swing arm 20
Lifting.
In order to further optimize above-mentioned technical proposal, computer control unit 1 includes computer chip 21, digital output
Module, servo-driver 22 and alternating interface between man and computer.
In order to further optimize above-mentioned technical proposal, computer control unit 1 is connected with pressure sensor, and pressure is passed
Sensor is connected with electro-hydraulic valve 1, and pressure sensor can quickly and accurately detect the pressure value of electro-hydraulic valve 1,
And by parameter feedback to computer control unit 1.
In order to further optimize above-mentioned technical proposal, computer control unit 1 is connected with speed probe, and rotating speed is passed
Sensor is connected with transmission output shaft gear, and speed probe can quickly and accurately detect the rotating speed of speed changer output, and
By parameter feedback to computer control unit 1.
Be laid flat according to loading machine spading, scraper bowl, discharging, advance, the operation such as retrogressing, 1 pair of computer control unit performs member
Part swing arm digital oil cylinder 4 and the predetermined work parameter of scraper bowl digital oil cylinder 5, join to the speed changer output speed predetermined work of loading machine
Number, advances or retrogressing predetermined work parameter, the automatic spading program of the also predetermined underloading of computer control unit 1 and work to loading machine
The automatic spading program of parameter, standard and running parameter and the automatic spading program of heavy duty and running parameter.
In order to further optimize above-mentioned technical proposal, swing arm connection valve element 8 is provided with 4 movement positions：Upper raise-position, middle position,
Lower decrease and floating bit, wherein lower decrease and floating bit are overlapped on a position.
In order to further optimize above-mentioned technical proposal, scraper bowl connection valve element 13 is provided with 3 movement positions：Upper indexing, middle position,
Lower indexing.
In order to further optimize above-mentioned technical proposal, speed change valve element 16 is provided with 4 movement positions：The gear of advance I, advance II
Gear, neutral and reverse gear.
Embodiment two：The present invention can carry out underloading, standard, the categorizing selection of heavy duty according to the density of manipulating object.When setting
When determining underloading, press automatic spading switch and perform underloading program work pattern, when established standardses, press automatic spading switch and hold
Rower quasi-ordering mode of operation, when setting heavy duty, presses automatic spading switch and performs heavily loaded program work pattern.
Computer control unit 1 is received after underloading, standard or the automatic spading instruction of heavy duty, by according to the journey set in advance
Sequence, instruction, swing arm connection servomotor are sent to swing arm connection servomotor 6, scraper bowl connection servomotor 11 and variable speed servomotor 14
6th, scraper bowl connection servomotor 11 and variable speed servomotor 14 will be moved by predetermined running parameter.Drive swing arm connection valve element 8
Raise-position is moved to, so as to control swing arm digital oil cylinder 4 to rise, when swing arm digital oil cylinder 4 rises to predetermined position, by parameter
Computer control unit 1 is fed back to, then swing arm connection valve element 8 returns to middle position, the stop motion of swing arm digital oil cylinder 4, while scraper bowl
Connection valve element 13 is moved to be turned on indexing, control scraper bowl digital oil cylinder 5, will when predetermined position is gone on scraper bowl digital oil cylinder 5
Parameter feedback returns to middle position, such alternation to computer control unit 1, then scraper bowl connection valve element 13；While speed change servo
Motor 14 is switched to the gear of advance I and provides maximum load machine travel power.It is achieved thereby that underloading, standard, the whole automatic spading of heavy duty
Process.
Embodiment three：The present invention can be laid flat loading according to the degree of packing of manipulating object progress scraper bowl or scraper bowl is laid flat excavation
Categorizing selection.When setting loading, press scraper bowl and be laid flat switch execution load module mode of operation automatically, when setting is excavated,
Press the automatic switch that is laid flat and perform excavation program work pattern.
Computer control unit 1 receives loading or excavated and is laid flat automatically after instruction, the program that basis is set in advance, to dynamic
Arm connection servomotor 6, scraper bowl connection servomotor 11 send instruction, and swing arm connection servomotor 6, scraper bowl connection servomotor 11 will be by pre-
Fixed running parameter is moved, and is driven swing arm connection valve element 8 to move to lower decrease, so as to control swing arm digital oil cylinder 4 to decline, is moved
When arm digital oil cylinder 4 drops to precalculated position, by parameter feedback to computer control unit 1, during then swing arm connection valve element 8 is returned
Position, the stop motion of swing arm digital oil cylinder 4, while scraper bowl connection valve element 13 moves to lower indexing, lower turn of scraper bowl digital oil cylinder 5, scraper bowl
When predetermined position is gone under digital oil cylinder 5, by parameter feedback to computer control unit 1, then scraper bowl connection valve element 13 is returned
Middle position.It is achieved thereby that loading, excavation is entirely laid flat process automatically.
Example IV：The present invention is big for viscosity, the especially big material of the degree of packing, to mitigate resistance when scraper bowl enters stockpile
Power, adds loading shovel vibrating function.Vibroswitch is pressed, computer control unit 1 is received after vibration instruction, by root
According to the program set in advance, instruction is sent to scraper bowl connection servomotor 11, scraper bowl joins servomotor 11 to be carried out by predetermined work parameter
Motion, drive turn on scraper bowl digital oil cylinder 5, stop, lower turn, stopping, so as to produce vibration.
Embodiment five：Because the material glued on scraper bowl can have a huge impact to loading machine operating efficiency and energy consumption, this
Invention adds loading machine for tough material and knocks bucket function.Press and knock bucket switch, computer control unit 1, which is received, knocks
After bucket instruction, by according to the program set in advance, instruction is sent to scraper bowl connection servomotor 11, scraper bowl connection servomotor 11 is by predetermined
Running parameter moved, drive turn on scraper bowl digital oil cylinder 5, stop, lower turn, stopping, knocking bucket so as to complete.
Embodiment six：The present invention is provided with automatic discharging function, presses automatic discharging switch, and computer control unit 1 connects
Receive after automatic discharging instruction, by according to the program set in advance, sent to swing arm connection servomotor 6, scraper bowl connection servomotor 11
Instruction, swing arm connection servomotor 6, scraper bowl connection servomotor 11 are moved by predetermined running parameter, drive scraper bowl connection valve element
13 move to lower indexing, so that lower turn of scraper bowl digital oil cylinder 5 is controlled, when going to precalculated position under scraper bowl digital oil cylinder 5, by parameter
Computer control unit 1 is fed back to, then scraper bowl connection valve element 13 returns to middle position.After delay, scraper bowl connection valve core 13, which is moved to, to be turned
Turn on position, control scraper bowl digital oil cylinder 5, when predetermined position is gone on scraper bowl digital oil cylinder 5, by parameter feedback to computer control
Unit 1 processed, then scraper bowl connection valve element 13 returns to middle position, while swing arm connection valve element 8 moves to raise-position, control swing arm digital oil cylinder
4 rise, when swing arm digital oil cylinder 4 rises to precalculated position, by parameter feedback to computer control unit 1, and then swing arm joins valve
Core 8 returns to middle position, indicates that preset program completes whole discharge process.
Embodiment seven：The present invention has the basic function of hydraulic system of loading machine working device operation, rises by downward moving arm
Or down switch, computer control unit 1, which is received, to be risen or fallen after instruction, by according to the program set in advance, gives swing arm connection
Servomotor 6 sends instruction, and swing arm connection servomotor 6 is moved by predetermined work parameter, unclamps swing arm and rise or fall out
Close, swing arm connection servomotor 6 presses predetermined work movement parameter, swing arm connection valve element 8 returns to middle position off-load, the stop motion of swing arm 20.
Press turn on scraper bowl or under turn on passs, computer control unit 1 receive turn or lower turn instruct after, the journey that basis is set in advance
Sequence, instruction is sent to scraper bowl connection servomotor 11, and scraper bowl connection servomotor 11 is moved by predetermined work parameter, unclamps scraper bowl
It is upper turn or under turn on passs, scraper bowl connection servomotor 11 is moved by predetermined running parameter, the scraper bowl connection return middle position off-load of valve element 13,
The stop motion of scraper bowl 19.
Embodiment eight：The present invention has swing arm height lock function.When loading machine gives a fixing device discharging, due to it
Discharging height be consistent, therefore after the completion of first time manual cleaning, switched surely by downward moving arm height lock, follow-up is each
Discharging, swing arm 20, which has arrived lock height, will stop rising, not only save but also alleviate driver's labor intensity.
Embodiment nine：Loading machine walking of the present invention has automatic gear change function.When loading machine, which is walked, to advance, speed change is grasped
Vertical handle is shifted I gear of advance onto and put, and computer control unit 1 is received after the gear instruction of advance I, the program that basis is set in advance,
Send and instruct to variable speed servomotor 14, variable speed servomotor 14 is moved by predetermined running parameter, loading machine is in advance I
Gear is walked, and now computer control unit 1 is detecting the rotating speed of speed changer output by speed probe always.Work as output speed
When rising reaches the gearshift rotating speed of setting, computer control unit 1 sends instruction, and variable speed servomotor 14 presses predetermined work parameter
Gear switching is carried out, loading machine automatically switches to II gear of advance from I gear that advances.When output speed drops to the gearshift rotating speed of setting
When, computer control unit 1 sends instruction, and variable speed servomotor 14 carries out gear switching, loading machine by predetermined running parameter
From advancing, II gear automatically switches to I gear of advance, realizes loading machine fluid drive.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (7)
1. a kind of Digitizing And Control Unit of hydraulic system of loading machine working device and compensator pressure system, it is characterised in that bag
Include：Computer control unit, with the computer control unit be electrically connected with electro-hydraulic valve one and electro-hydraulic valve two with
And the swing arm digital oil cylinder and scraper bowl digital oil cylinder being connected with the electro-hydraulic valve one；Wherein, the electro-hydraulic valve one is wrapped
Swing arm connection servomotor is included, joins swing arm connection transmission mechanism, the swing arm connection valve element, suit that servomotor is sequentially connected with the swing arm
Join the valve body one on valve element and the middle position feedback switch on the valve body one in the swing arm；The electro-hydraulic valve
One, which also includes scraper bowl, joins servomotor, joins scraper bowl connection transmission mechanism, the scraper bowl connection valve that servomotor is sequentially connected with the scraper bowl
Core, the valve body one being sleeved on the scraper bowl connection valve element and the middle position feedback on the valve body one are opened
Close；The electro-hydraulic valve two include variable speed servomotor, the variable transmission mechanism being connected successively with the variable speed servomotor,
Speed change valve element, the valve body two being sleeved on the speed change valve element and the neutral feedback switch on the valve body two.
2. the Digital Control of a kind of hydraulic system of loading machine working device according to claim 1 and compensator pressure system
System, it is characterised in that the computer control unit include computer chip, digital output module, servo-driver and
Alternating interface between man and computer.
3. the Digital Control of a kind of hydraulic system of loading machine working device according to claim 2 and compensator pressure system
System, it is characterised in that the computer control unit is connected with pressure sensor, and the pressure sensor and the electricity
Hydraulic valve one is connected.
4. the Digital Control of a kind of hydraulic system of loading machine working device according to claim 2 and compensator pressure system
System, it is characterised in that the computer control unit is connected with speed probe, and the speed probe and loading machine
Speed changer output is connected.
5. the Digital Control of a kind of hydraulic system of loading machine working device according to claim 1 and compensator pressure system
System, it is characterised in that the swing arm connection valve element is provided with 4 movement positions：Upper raise-position, middle position, lower decrease and floating bit, its
In lower decrease and floating bit overlap on a position.
6. the Digital Control of a kind of hydraulic system of loading machine working device according to claim 1 and compensator pressure system
System, it is characterised in that the scraper bowl connection valve element is provided with 3 movement positions：Upper indexing, middle position, lower indexing.
7. the Digital Control of a kind of hydraulic system of loading machine working device according to claim 1 and compensator pressure system
System, it is characterised in that the speed change valve element is provided with 4 movement positions：Advance I gear, II gear that advances, neutral and reverse gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537624.0A CN107178105B (en) | 2017-07-04 | 2017-07-04 | Digital control system of loader hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537624.0A CN107178105B (en) | 2017-07-04 | 2017-07-04 | Digital control system of loader hydraulic system |
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| CN107178105A true CN107178105A (en) | 2017-09-19 |
| CN107178105B CN107178105B (en) | 2023-01-17 |
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| CN201710537624.0A Active CN107178105B (en) | 2017-07-04 | 2017-07-04 | Digital control system of loader hydraulic system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869490A (en) * | 2017-11-21 | 2018-04-03 | 黎明液压有限公司 | A kind of digital hydraulic speed change operating valve |
| CN107883016A (en) * | 2017-11-21 | 2018-04-06 | 黎明液压有限公司 | A kind of electro-hydraulic directional control valve valve element |
| CN107989111A (en) * | 2017-11-21 | 2018-05-04 | 黎明液压有限公司 | Loader hydraulic system automatic control system |
| CN112627259A (en) * | 2020-12-07 | 2021-04-09 | 广西柳工机械股份有限公司 | Control method for automatic shoveling operation of loader and loader |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606786A (en) * | 2012-03-09 | 2012-07-25 | 三一重工股份有限公司 | Electric-hydraulic valve as well as control device and control method thereof |
| CN203066135U (en) * | 2013-02-05 | 2013-07-17 | 曲鹏程 | Intelligent electrohydraulic control system of loader |
| CN103215976A (en) * | 2012-01-20 | 2013-07-24 | 杨世祥 | All-digital full-hydraulic intelligent excavator device and control method |
| US20160153165A1 (en) * | 2014-12-02 | 2016-06-02 | CNH Industrial America, LLC | Work vehicle with enhanced implement position control and bi-directional self-leveling functionality |
| CN106245706A (en) * | 2016-08-02 | 2016-12-21 | 福州大学 | Loader intelligent control method |
| CN207130797U (en) * | 2017-07-04 | 2018-03-23 | 黎明液压有限公司 | A kind of Digitizing And Control Unit of loader hydraulic system |
-
2017
- 2017-07-04 CN CN201710537624.0A patent/CN107178105B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215976A (en) * | 2012-01-20 | 2013-07-24 | 杨世祥 | All-digital full-hydraulic intelligent excavator device and control method |
| CN102606786A (en) * | 2012-03-09 | 2012-07-25 | 三一重工股份有限公司 | Electric-hydraulic valve as well as control device and control method thereof |
| CN203066135U (en) * | 2013-02-05 | 2013-07-17 | 曲鹏程 | Intelligent electrohydraulic control system of loader |
| US20160153165A1 (en) * | 2014-12-02 | 2016-06-02 | CNH Industrial America, LLC | Work vehicle with enhanced implement position control and bi-directional self-leveling functionality |
| CN106245706A (en) * | 2016-08-02 | 2016-12-21 | 福州大学 | Loader intelligent control method |
| CN207130797U (en) * | 2017-07-04 | 2018-03-23 | 黎明液压有限公司 | A kind of Digitizing And Control Unit of loader hydraulic system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869490A (en) * | 2017-11-21 | 2018-04-03 | 黎明液压有限公司 | A kind of digital hydraulic speed change operating valve |
| CN107883016A (en) * | 2017-11-21 | 2018-04-06 | 黎明液压有限公司 | A kind of electro-hydraulic directional control valve valve element |
| CN107989111A (en) * | 2017-11-21 | 2018-05-04 | 黎明液压有限公司 | Loader hydraulic system automatic control system |
| CN112627259A (en) * | 2020-12-07 | 2021-04-09 | 广西柳工机械股份有限公司 | Control method for automatic shoveling operation of loader and loader |
| CN112627259B (en) * | 2020-12-07 | 2022-07-26 | 广西柳工机械股份有限公司 | Control method for automatic shoveling operation of loader and loader |
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